DESCRIPTION
The SC1633 is a high efficiency step up DC-DC converter. Only four external components are required to deliver a fixed voltage of 3V, 3.3V, or 5V. Efficiency beyond 83% can be easily achieved at 70mA load with 2.2V to 3V input voltages.
FEATURES
• High efficiency 87%
• Power-saving shutdown mode (7µA typical)
• Internal 0.8A switch
• 120kHz switching rate
• Adjustable switch current limit
• On-chip low battery detector
APPLICATIONS
• Pocket organizers
• Electronic dictionaries
• Cameras
• Pagers
• Bar code scanners
• LCD displays
• Battery backup supplies
• Portable instruments